The definition of whatsoever is whatever. An example of whatsoever used as an adjective is in the phrase, "no decision whatsoever," which means no decision was made.

Is whatsoever a real word?

Whatsoever is perfectly fine if used for emphasis. For example, if you were reviewing a book about desserts, you might say: The authors make no mention about ice cream. This is a plain statement, just reporting the facts.

Is it rude to say whatsoever?

Is whatsoever rude? 2 Answers. Yes, it's rude. “Whatever” expresses indifference; often, expressing indifference is dismissive, and in this case, it's dismissive of what the other person has to say.